A resolute onyx drug-eluting stent was intended to be used during a procedure to treat a lesion in the distal lad, exhibiting moderate tortuosity and moderate calcification.The lesion was 75% stenosed.No damage was noted to device packaging, and the device was inspected without issues noted.The lesion was not pre-dilated and the device did not pass through a previously deployed stent.No resistance was noted when advancing the stent, and excessive force was not used during delivery.It is reported that after the initial inflation and delivery system removal, the physician noticed the stent had migrated from the distal lad to the proximal lad.The stent was inflated with a non-compliant balloon dilation catheter to 2.5mm.Afterward the stent once again migrated into the left main.The physician had to post-dilate the stent to 3.0mm and leave it in the left main.The original distal lesion was not treated.No further patient injury reported.
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